-- Product brands: reference data like categories, administered centrally and
-- referenced by products. A brand can be retired without touching its products.

CREATE TABLE brands (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name JSONB NOT NULL,
    slug TEXT NOT NULL UNIQUE,
    position INT NOT NULL DEFAULT 0,
    active BOOLEAN NOT NULL DEFAULT TRUE,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

ALTER TABLE products
    ADD COLUMN brand_id UUID REFERENCES brands (id) ON DELETE SET NULL;

CREATE INDEX products_brand_idx ON products (brand_id);